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Persistence of fishers in riparian forests in North Dakota, USA following a severe flood event

100%

Triska M. D., Loughry S. C., Serfass T. L.

Acta Theriologica

2011

tom 56

nr 4

Historically, the distribution of fishers (Martes pennanti) in North America included portions of eastern North Dakota, USA; however, the population was reported to have become extirpated by the early 1900s. Verified reports, road-killed and incidentally trapped individuals, indicate that fishers have been re-establishing populations in riparian forests (the only areas with substantive forest cover in the region) over the last 10 years. During the summers of 2008 (16 Jun–1 Aug) and 2009 (1 Jun–18 Aug), we conducted presence–absence sampling using remote cameras and enclosed track-plates to determine the distribution of fishers along 237 km of the Red River of the North in North Dakota. Between sampling events, the Red River experienced an extreme flood with peak flooding above major flood stage, which inundated all riparian forests within the study area from approximately 23 Mar–22 May. Because of the severity of the flood, we anticipated that fishers could have perished or been displaced from much of the study area, resulting in lower detection rates in 2009 than 2008. However, fishers were detected throughout the study area during both years and, unexpectedly, detection rates were higher in 2009 than 2008 (28 out of 35 sites [80%] and 25 out of 57 sites [44%], respectively). Our study demonstrates that fishers existing in what traditionally would have been considered marginal habitat for the species were able to persist following a severe, multi-month flood that inundated >95% of the forest habitat.

Evolutionary history of the sable (Martes zibellina brachyura) on Hokkaido inferred from mitochondrial Cytb and nuclear Mc1r and Tcf25 gene sequences

61%

Ishida K., Sato J. J., Kinoshita G., Hosoda T., Kryukov A. P., Suzuki H.

Acta Theriologica

2013

tom 58

nr 1

We examined sequence variation in mitochondrial and nuclear genes of seven species of the genus Martes (Mustelidae, Carnivora): Martes americana (American marten), Martes flavigula (yellow-throated marten), Martes foina (beech marten), Martes martes (pine marten), Martes melampus (Japanese marten), Martes pennanti (fisher) and Martes zibellina (sable), focusing on the phylogenetic history of the Hokkaido subspecies of the sable, Martes zibellina brachyura. Nucleotide sequence analysis of the mitochondrial cytochrome b gene confirmed the view that the Hokkaido sable population has lower genetic diversity. In contrast, network analysis of a nuclear gene related to coat colour, melanocortin-1 receptor (Mc1r), revealed two different haplogroups for this population: one shared with that of Russian sables and the other specific to this population but with a close relationship with the American and Japanese martens, implying that these endemic haplotypes are composed of uncharacterised ancestral lineages of a past population. We also examined the sequence variation in a neighbouring nuclear gene, transcription factor 25 (Tcf25), located about 5 kb upstream from the Mc1r gene, and found similar trends. The sable genome leaves the impression that Hokkaido hosted ancient marten lineages, with subsequent recent migrations from the continent. The validity of a candidate Mc1r mutation for the entirely yellow coat observed on Hokkaido sables was also discussed.

Ocena sposobu zywienia marynarzy i rybakow

51%

Babicz-Zielinska E., Zabrocki R.

Roczniki Państwowego Zakładu Higieny

1998

tom 49

nr 4

499-505

Wykazano, że dzienna racja pokarmowa marynarzy i rybaków charakteryzowała się za wysoką wartością energetyczną, zbyt dużym udziałem tłuszczu, niedostateczną zawartością węglowodanów; nadmierne było spożycie mięsa i wędlin jaj, masła i śmietany, niedostateczne zaś produktów zbożowych oraz ziemniaków. Negatywnie oceniono jadłospisy z powodu niedostatecznej ilości świeżych warzyw i owoców, monotonii w doborze produktów oraz stosowaniu głównie smażenia i pieczenia jako metod obróbki mięsa. Stwierdzono, że obecna struktura spożycia stanowi potencjalny czynnik powstawania chorób cywilizacyjnych.

Ograniczanie wyników

2 Acta Theriologica

1 Roczniki Państwowego Zakładu Higieny

1 Babicz-Zielinska E.

1 Hosoda T.

1 Ishida K.

1 Kinoshita G.

1 Kryukov A. P.

1 Loughry S. C.

1 Sato J. J.

1 Serfass T. L.

1 Suzuki H.

1 Triska M. D.

1 Zabrocki R.

1 2013

1 2011

1 1998

Wyniki wyszukiwania

Persistence of fishers in riparian forests in North Dakota, USA following a severe flood event

Evolutionary history of the sable (Martes zibellina brachyura) on Hokkaido inferred from mitochondrial Cytb and nuclear Mc1r and Tcf25 gene sequences

Ocena sposobu zywienia marynarzy i rybakow